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Reportable Segments (Revenues, Gross Profit and Gross Margin, by Segment) (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 27, 2015	Sep. 28, 2014
Segment Reporting Information [Line Items]
Revenue, net	$ 425,489	$ 427,672
Gross profit	$ 131,748	$ 135,820
Gross margin	31.00%	31.80%
Lighting Products [Member]
Segment Reporting Information [Line Items]
Revenue, net	$ 248,031	$ 223,086
Gross profit	$ 69,081	$ 55,592
Gross margin	27.90%	24.90%
LED Products [Member]
Segment Reporting Information [Line Items]
Revenue, net	$ 148,208	$ 173,590
Gross profit	$ 52,659	$ 67,624
Gross margin	35.50%	39.00%
Power and RF Products [Member]
Segment Reporting Information [Line Items]
Revenue, net	$ 29,250	$ 30,996
Gross profit	$ 14,323	$ 17,857
Gross margin	49.00%	57.60%
Total segment gross profit [Member]
Segment Reporting Information [Line Items]
Gross profit	$ 136,063	$ 141,073
Unallocated Costs [Member]
Segment Reporting Information [Line Items]
Gross profit	$ (4,315)	$ (5,253)

X

- Definition

Gross profit (aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity), as percent of revenue.

+ References

No definition available.

+ Details

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- Definition

Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 225



-SubTopic 10



-Section S99



-Paragraph 2



-Subparagraph (SX 210.5-03.1,2)



-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

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- Definition

Aggregate revenue during the period from the sale of goods in the normal course of business, after deducting returns, allowances and discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 225



-SubTopic 10



-Section S99



-Paragraph 2



-Subparagraph (SX 210.5-03.1(a))



-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688



Reference 2: http://www.xbrl.org/2003/role/presentationRef



-Publisher SEC



-Name Regulation S-X (SX)



-Number 210



-Section 03



-Paragraph 1



-Article 5

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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